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Chemistry Essentials - 004

Coulomb’s Law

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Coulomb’s Law

Force between charged particles

Magnitude of charges (q1q2)

Inversely ProportionalProportional

Radius squared( r2 )

Energy required

Ionization Energy

predicts

Shell structure

Photoelectron Spectroscopy (PES)

measures

Data

Remove anelectron

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Coulomb’s LawCharles Augustin de Coulomb

torsion balancebozemanscience.com

Coulomb’s Law

torsion balance

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Coulomb’s Law

torsion balance

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Coulomb’s Law

torsion balance

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Coulomb’s Law

+q/2 +q/2

torsion balance

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Coulomb’s Law

+q/2

+q/2

torsion balance

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Ionization Energy E

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Ionization Energy

E

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Ionization Energy

E

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Ionization Energy E

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Ionization Energy

E

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Ionization Energy

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Photoelectric Effect

photons

photoelectrons

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Build an Atom

http://phet.colorado.edu/ bozemanscience.com

Photoelectric Effect

photons

photoelectronsE = hv

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Photoelectron Spectroscopy (PES)

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Photoelectron Spectroscopy (PES)

Num

ber

of E

lect

rons

Energy0 10

1.31

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Photoelectron Spectroscopy (PES)

Num

ber

of E

lect

rons

Energy0 10

2.37

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Photoelectron Spectroscopy (PES)

Num

ber

of E

lect

rons

Energy0 10

2.37

1.31

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Photoelectron Spectroscopy (PES)

Num

ber

of E

lect

rons

Energy0 10

2.37

1.31.52

6.26

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Coulomb’s Law

Force between charged particles

Magnitude of charges (q1q2)

Radius squared( r2 )

Energy required

Ionization Energy

predicts

Shell structure

measures

Data

bozemanscience.com

Coulomb’s Law

Force between charged particles

Magnitude of charges (q1q2)

Inversely ProportionalProportional

Radius squared( r2 )

Energy required

Ionization Energy

predicts

Shell structure

Photoelectron Spectroscopy (PES)

measures

Data

Remove anelectron

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Explain the distribution of electrons in an atom or ion

based on data.

Did you learn?

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Analyze data relating to electron energies for

patterns and relationships.

Did you learn?

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“Build an Atom.” PhET, July 31, 2013. http://phet.colorado.edu/en/simulation/build-an-atom. “File:Albert Einstein (Nobel).png,” July 31, 2013. https://en.wikipedia.org/wiki/File:Albert_Einstein_(Nobel).png. “File:Coulomb.jpg,” July 29, 2013. https://en.wikipedia.org/wiki/File:Coulomb.jpg. File:CoulombsLaw.svg, n.d. https://en.wikipedia.org/wiki/File:CoulombsLaw.svg. “File:Electron Shell 001 Hydrogen - No Label.svg,” July 31, 2013. http://en.wikipedia.org/wiki/File:Electron_shell_001_Hydrogen_-_no_label.svg. “File:Electron Shell 002 Helium - No Label.svg,” July 31, 2013. http://en.wikipedia.org/wiki/File:Electron_shell_002_Helium_-_no_label.svg. “File:Electron Shell 003 Lithium - No Label.svg,” July 31, 2013. http://en.wikipedia.org/wiki/File:Electron_shell_003_Lithium_-_no_label.svg. “File:Photoelectric Effect.svg,” July 31, 2013. http://en.wikipedia.org/wiki/File:Photoelectric_effect.svg. File:Pointing Hand Cursor Vector.svg, n.d. http://commons.wikimedia.org/wiki/File:Pointing_hand_cursor_vector.svg. Svdmolen/Jeanot. Helium Atom (not to Scale), converted 2007 2005. Image:Atom.png. http://commons.wikimedia.org/wiki/File:Atom.svg.

Acknowledgements

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